Bonus Turnover Calculator: What Unlocking Costs
Enter a bonus offer’s multiple, the amount it applies to and your usual stake. The calculator shows what you must bet to withdraw, what betting it costs on average and what is left of the bonus after that cost.
The rule behind most offers
An offer often comes with a condition: a set amount must be bet before the bonus can be withdrawn. That amount is the turnover. The same idea also goes by wagering requirement, rollover and playthrough. The turnover is worked out as a multiple of a base, and the terms name the base: the bonus on its own, or the bonus plus the money you put in. Take 30× on a ₹1,000 bonus with a ₹1,000 deposit. On the first base that is ₹30,000 of bets, on the second ₹60,000. Betting it all is what this page calls unlocking the bonus.
None of the turnover is lost just by being bet. Most of it returns and goes back into play. The real cost is whatever the game holds back: the turnover multiplied by the house edge, which is the share of each stake a game keeps over the long run. Subtract that cost from the bonus and what remains is the bonus’s worth.
The six tiles, on a made-up offer
The calculator opens on invented terms: a ₹1,000 bonus, a ₹1,000 deposit, 30× on both together and ₹20 a round. For the game it uses the colour bet from the menu, an example that keeps 6.9% of each stake. None of this is BDG Win’s rules.
| Tile | Opening figure | How it is worked out |
|---|---|---|
| You must stake | ₹60,000 | 30 × (₹1,000 + ₹1,000). Winnings that you bet again are counted again, so this is not cash you must hold |
| Rounds | 3,000 | ₹60,000 ÷ ₹20. At a round a minute, that is 50 hours of play |
| Expected loss | ₹4,140 | ₹60,000 × 6.9% |
| What the bonus is worth | −₹3,140 | ₹1,000 − ₹4,140. A negative figure means the betting costs more than the bonus brings, on average |
| Chance you finish with more than you started | under 1% | The cost would have to stay under ₹1,000 when the average is ₹4,140. Running out on the way is not counted |
| Rough chance your balance hits zero first | 99% | The balance is ₹2,000 against an average loss of ₹4,140. Read it as the size of the risk, not a promise |
Change one box at a time
Learning the tool is quickest if you move one box and watch the tiles. Each row starts from the opening terms.
| What you change | Must stake | Expected loss | Bonus worth |
|---|---|---|---|
| Nothing | ₹60,000 | ₹4,140 | −₹3,140 |
| The multiple applies to the bonus only | ₹30,000 | ₹2,070 | −₹1,070 |
| Game odds: two-way bet, which keeps 2.0% | ₹60,000 | ₹1,200 | −₹200 |
| Multiple: 5× instead of 30× | ₹10,000 | ₹690 | ₹310 |
| Stake: ₹100 a round | ₹60,000 | ₹4,140 | −₹3,140 |
The last row is the one that surprises people, because it does not move. A bigger stake gets through the turnover in 600 rounds instead of 3,000, yet the cost is still turnover times edge. Only the path changes: the swing grows, and the rough chance of running out drops from 99% to 91%.
Break-even is the multiple that leaves the bonus worth exactly nothing: the bonus divided by the base times the edge. Here it is ₹1,000 ÷ (₹2,000 × 6.9%), about 7.2×, and the calculator states it in the line beneath the tiles. At any higher multiple, unlocking costs more than the bonus brings.
The button we saw
At the time of writing (8 October 2026), the bottom bar of BDG Win’s home page has a centre button that reads “Get ₹500”. We cannot see what it gives or the rules that come with it, so nothing above is its terms. The bonus offers guide goes through that button and a ₹500 example.
Entering a real offer
- Find two lines in the terms: the multiple, and the base it applies to.
- Enter the bonus and any deposit of your own (0 if none), then the multiple and the base.
- Enter the stake you would actually use, inside any top stake the terms allow.
- Choose the game whose odds apply. If your app prints a house edge, pick “My own house edge” and enter it. A printed return of 96% means an edge of 4%.
- Read the worth first and the two risk tiles second.
Some terms have no box: a top stake per round, which games count and at what rate, a time limit, a cap on withdrawals. If a game credits only half of each stake towards the turnover, enter double the multiple.
What it cannot tell you
- It has no idea what any platform’s terms say, and from outside we cannot look into one either. The result is only as good as the figures you enter.
- A condition you leave out, like a deadline or a withdrawal cap, is invisible to it.
- Each result is an average. The two risk tiles are rough, and a single try can land far from any of them.
For sessions with no bonus, use the loss calculator. To turn a limit into a stake, use the session budget. The tools page has the rest.
Common questions
Does this calculator use the terms of any BDG Win offer?
No. At the time of writing (8 October 2026) the terms behind the “Get ₹500” button, and behind any other offer on BDG Win’s pages, are not visible to us, so every amount in the opening example is invented. Read the real terms on your own screen and enter the multiple, the base and the other figures yourself.
Why does a bigger stake not lower what a bonus costs?
House edge times turnover gives the cost, and neither contains your stake. A bigger stake only gets you through the turnover in fewer rounds. In the opening example ₹20 a round takes 3,000 rounds and ₹100 takes 600, and both cost ₹4,140. The swing is wider at ₹100, about ₹2,306 against ₹1,031.
What do I type when my app shows a return figure instead of a house edge?
Subtract the return from 100 per cent. A game that returns 96 per cent keeps 4 per cent, so choose My own house edge and enter 4. On the opening offer that makes the bonus worth −₹1,400. The risk tiles then assume the spread of an even-money bet, so they read too low for games that pay big and rarely.
If only part of each stake counts towards the turnover, what do I type?
Convert it into a bigger multiple. If a game credits half of each stake, you must play twice as much to reach the same turnover, so enter double the multiple. A game that credits nothing cannot clear it at all. The terms say which games count and at what rate.
Does a bonus with no deposit change the sums?
Yes, in two places. The base can only be the bonus, and the balance used for the run-out figure is the bonus alone. Take a made-up ₹500 bonus at 15× on a ₹25 colour bet. The cost is about ₹517, so the bonus is worth −₹17, and the rough chance of that ₹500 balance hitting zero first is 66%. With a ₹500 deposit on top, so ₹1,000 to start from, the figure is 17%. Treat these risk figures as rough.
Why can the same bonus be worth something on one game and nothing on another?
Because games keep different shares, and the cost is the turnover times that share. On the opening terms the worth is −₹200 on the two-way illustration (2.0% kept), −₹3,140 on the colour bet (6.9%) and −₹6,080 on the violet bet (11.8%). Check which game the terms count.